Goliton 20dBi Wireless WiFi Antenna Signal Booster with Magnetic Base forModem Router PCI Card 20dbi Directional Antenna.Max gained 20dbi,provide more signals. RP-SMA male connector 2.4GHz Wireless WLAN Antenna Aerial. The rubber ring on the antenna pole for bending the antenna easily. Magnetic base/stand for avoiding the abrasion of your table. Connector:RP-SMA (male) (No pin inside).